5. Which of the following describes an element?

A. The simplest substance.
B. It can be broken down into other types of substances.
C. It can be separated through a chemical process.
D. It is composed of two or more types of atoms.

6. Which of the following statements correctly describes a compound?

A. Can be broken down into a simpler type of matter by chemical means.
B. Has a unique property that are different from the properties of its individual elements.
C. Composed of atoms of two or more elements that bond together.
D. Composed of two atoms that bond together.

7. Which of the following will be the result of compound if Hydrogen gas and oxygen gas combine?

A. Alcohol
B. Salt
C. Sugar
D. Water

8. Salt is made up of what elements?

A. Sodium and Chloride
B. Sodium and Chlorine
C. Sodium and Copper
D. Sodium and Oxide

9. Which of the following is correctly matched?

A. Gold: Element: Silver: Compound
B. Oxygen: Element: Water: Compound
C. Sugar: Element: Salt: Compound
D. Water: Element: Hydrogen: Compound

10. Which of the following is an element?

A. Na
B. Fe
C. Pz
D. He​